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Q. No.In frogs:
1. Respiration by lungs is called pulmonary respiration
2. The lungs are a pair of elongated, pink coloured sacs present below the thorax
3. During aestivation and hibernation gaseous exchange takes place through skin
4. Both (1) and (3) are correct
Subtopic: Frogs: Anatomy (Respiratory System) |
94%
From NCERT
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During buccal respiration in frogs:
1. The bucco-pharyngeal cavity is filled with air
2. Gaseous exchange occurs through the lining of buccal cavity
3. Both (1) and (2)
4. Pulmonary respiration stops
1. The bucco-pharyngeal cavity is filled with air
2. Gaseous exchange occurs through the lining of buccal cavity
3. Both (1) and (2)
4. Pulmonary respiration stops
Subtopic: Frogs: Anatomy (Respiratory System) |
86%
From NCERT
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Choose the correct statement for the blood circulation in frog's heart:
| 1. | The left artrium receives oxygenated blood from pulmonary veins |
| 2. | The right atrium receives deoxygenated blood through sinus venosus |
| 3. | Sinus venosus receives blood from vena cava |
| 4. | More than one option is correct |
Subtopic: Frogs: Anatomy (Circulatory System) |
82%
From NCERT
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Renal portal vein in frogs:
1. Carry oxygenated blood
2. Carry blood from lower part of the body to kidney
3. Both (1) and (2) are correct
4. May bypass kidney and directly enter heart
1. Carry oxygenated blood
2. Carry blood from lower part of the body to kidney
3. Both (1) and (2) are correct
4. May bypass kidney and directly enter heart
Subtopic: Frogs: Anatomy (Circulatory System) |
58%
From NCERT
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Read the following statements w.r.t. venous system of frogs:
(i) Hepatic portal vein carries blood of alimentary canal and its glands to the liver
(ii) Pulmonary veins carry deoxygenated blood from lungs to left auricle
(iii) Vena Cava carry deoxygenated blood from body parts to the heart
(iv) Renal portal vein carry blood from hind limbs and gonads to the kidney
(v) Special venous connections between liver and intestine as well as kidney and lower parts are present
How many of the above statements are correct?
1. One
2. Four
3. Five
4. Three
(i) Hepatic portal vein carries blood of alimentary canal and its glands to the liver
(ii) Pulmonary veins carry deoxygenated blood from lungs to left auricle
(iii) Vena Cava carry deoxygenated blood from body parts to the heart
(iv) Renal portal vein carry blood from hind limbs and gonads to the kidney
(v) Special venous connections between liver and intestine as well as kidney and lower parts are present
How many of the above statements are correct?
1. One
2. Four
3. Five
4. Three
Subtopic: Frogs: Anatomy (Circulatory System) |
From NCERT
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The frog's blood:
1. Is composed of corpuscles but lack plasma
2. Contains RBCs, WBCs and platelets or thrombocytes and plasma
3. Contains RBCs which are oval, biconvex and nucleated
4. Is related to more than one option mentioned above
1. Is composed of corpuscles but lack plasma
2. Contains RBCs, WBCs and platelets or thrombocytes and plasma
3. Contains RBCs which are oval, biconvex and nucleated
4. Is related to more than one option mentioned above
Subtopic: Frogs: Anatomy (Circulatory System) |
57%
From NCERT
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Which of the following is incorrect for lymphatic system of frogs?
1. Lymph is without RBCs and contain few proteins only
2. Lymph is colourless
3. Lymph is continuously produced from filtering of blood through capillaries into intercellular spaces
4. Lymph hearts are absent
1. Lymph is without RBCs and contain few proteins only
2. Lymph is colourless
3. Lymph is continuously produced from filtering of blood through capillaries into intercellular spaces
4. Lymph hearts are absent
Subtopic: Frogs: Anatomy (Circulatory System) |
53%
From NCERT
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Which of the following is true for the excretory system of frogs?
1. Two ureters emerge from the kidneys of male frogs which act as urinogenital duct that opens into cloaca
2. In female frogs ureters and oviduct forms the urinogenital duct that opens into cloaca
3. Both (1) and (2)
4. Urinary bladder is present dorsal to the rectum which open into the cloaca
1. Two ureters emerge from the kidneys of male frogs which act as urinogenital duct that opens into cloaca
2. In female frogs ureters and oviduct forms the urinogenital duct that opens into cloaca
3. Both (1) and (2)
4. Urinary bladder is present dorsal to the rectum which open into the cloaca
Subtopic: Frogs: Anatomy (Excretory System) |
64%
From NCERT
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Read the following statements for frog:
(i) They possess both neural and endocrine system
(ii) They possess a central nervous system (Brain and spinal cord) and a peripheral nervous system (cranial and spinal nerves)
(iii) They lack an autonomic nervous system
(iv) They possess 10 pairs of cranial nerves arising from the brain
(v) Stomach contains oxyntic glands, gastric glands, hepatic caeca, calciferous glands as well as collaterial glands
How many of the above statements are correct?
1. Two
2. Three
3. Four
4. Five
(i) They possess both neural and endocrine system
(ii) They possess a central nervous system (Brain and spinal cord) and a peripheral nervous system (cranial and spinal nerves)
(iii) They lack an autonomic nervous system
(iv) They possess 10 pairs of cranial nerves arising from the brain
(v) Stomach contains oxyntic glands, gastric glands, hepatic caeca, calciferous glands as well as collaterial glands
How many of the above statements are correct?
1. Two
2. Three
3. Four
4. Five
Subtopic: Frogs: Anatomy (Nervous System) |
64%
From NCERT
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Match the columns:
1. A - (i), B - (iii), C - (ii)
2. A - (ii), B - (i), C - (iii)
3. A - (iii), B - (i), C - (ii)
4. A - (i), B - (ii), C - (iii)
| Column-I | Column-II | ||
| A. | Fore-brain | (i) | A pair of optic lobes |
| B. | Mid-brain | (ii) | Cerebellum and medulla oblongata |
| C. | Hind-brain | (iii) | Olfactory lobe, paired cerebral hemisphere, unpaired diencephalon |
2. A - (ii), B - (i), C - (iii)
3. A - (iii), B - (i), C - (ii)
4. A - (i), B - (ii), C - (iii)
Subtopic: Frogs: Anatomy (Nervous System) |
90%
From NCERT
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